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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Pics of AFE Downpipes



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      09-13-2013, 03:39 PM   #23
135Pats
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Hehe you should try out full catless with corn fuel. Now that is a smell.
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      09-13-2013, 03:40 PM   #24
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I thought it smelled less with ethanol? (I've never run it so no experience there).
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      09-13-2013, 03:41 PM   #25
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Quote:
Originally Posted by 135Pats View Post
Hehe you should try out full catless with corn fuel. Now that is a smell.
It smells sweet!!! Smells sooo much more pleasant than straight 91/93
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      09-13-2013, 03:43 PM   #26
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Quote:
Originally Posted by ashmostro View Post
I thought it smelled less with ethanol? (I've never run it so no experience there).
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Originally Posted by joec500 View Post
It smells sweet!!! Smells sooo much more pleasant than straight 91/93
Oh it smells better for sure....I was just saying it smells. Not smells bad.

Well I also get a nice whiff of burning oil when I have the windows down, so that makes it un-fun. Thanks a lot blown turbo seals.
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      09-21-2013, 12:46 PM   #27
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Problems with AR catted downpipes... poor fitment!









They simply don’t fit – the installers thinks the angles are wrong (they are a reputable race shop). One of the DPs is colliding with the motor mount, and if you try to rotate it away at the V band clamp, it won’t line up with the OEM exhaust. The other one won’t even line up at the v band clamp and can’t be clamped down unless it is rotated so far that it hits the other DP and then stops. The pics show all.
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      09-21-2013, 01:16 PM   #28
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I don't mind the catless smell. Most of the time I run E35 or so, but even on straight 93 I don't think it's that bad.
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      09-21-2013, 03:33 PM   #29
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that c@tless smell means extra HP! Seriously, with secondaries in place its not back IMO.

Sorry the AR catted did not fit....surprising coming from AR. Did you contact them directly about this?
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      09-21-2013, 03:37 PM   #30
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Yeah I'm awaiting their response
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